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(No Model.) 3 Sheets-Sheet l.

B. HEFTYE. ELEGTRIG PUMP.

No. 581,204. Pategtd Apr. 20, 18 97.

(No Modem 3 Sheets-Sheet 2.

B. HEFTYE. ELECTRIC PUMP. .No. 581,204. Patented Apr. 20, 1897.

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' B. HEFTYE.

\ v 4 ELECTRIC PUMP. No. 581.204. PatentedApr.20, 1897.

UNITED STATES PATENT @FFICE.

BIRGER IIEFTYE, OF TUXPAN, MEXICO, ASSIGNOR OF ONEIIALF TO ROBERTO S.BOYD, OF SAME PLACE.

ELECTRIC PUMP.

$PECIFICA'I'ION forming part of Letters Patent No. 581 ,204, dated April20, 1897. Application filed October 10, 1896. Serial No. 608,488. (Nomodel.)

To aIZZ whom it may concern:

Be it known that L'Brnenn HEFTYE, a citizen of the Republic of Mexico,and a resident of TuXpan, in the Province of Vera Cruz and Republic ofMexico,have invented certain new and useful Improvements in ElectricPumps; and I do hereby declare that the following is a full, clear, andexact description of the invention,which will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, which form a part of thisspecification.

My invention relates to improvements in electric pumps; and its objectis to provide an improved construction whereby the usual electroinotorsare dispensed with, the pumpcylinders and pistons themselvesconstituting an electromagnetic engine.

In carrying my invention into effect I employ two pump-cylinders, eachwound with insulated electric wires, through which, when the pump is inuse, passes a constantelectric current in one direction, so that thepolarity never changes. The cylinders thus form hollow electromagnets orsolenoids, in each of which is located a piston, also wound with in-'sulated wire, through which an electric current passes, formingelectromagnets which are independent of the cylinders. The current ateach stroke of the pistons is reversed, so

as to shift the poles, whereby the pistons arereciprocated. Thesepistons are connected together and are provided with a packingring ofnon-magnetic material which separates them from the cylinders, yet makesthem a water-tight joint. Means are provided for shifting the poles ofthe pistons at each stroke thereof, so that they'will be alternatelyattracted toward opposite ends of the cylinders to cause theirreciprocation.

The invention consists in the novel construction and combination ofparts hereinafter fully described and claimed.

Having thus briefly outlined the nature of my invention, I will nowproceed to describe the same in detail, referring to the accompanyingdrawings, in which Figure l is a longitudinal sectional view of anelectromagnetic pump constructed in accordance with my invention. Fig. 2isatransverse sectional View, on an enlarged scale, of the commutators,showing the means for shifting the poles of the pistons. Fig. 3 is ahorizontal sectional view of the same. Fig. 4. is an end view. Fig. 5 isa side elevation of the governor for diminishing the spark in shiftingthe poles.

In the said drawings the reference 11nme'rals 1 and 2 designate twocylinders, which may be provided with a lining or not, as may bedesired. Each of these cylinders is provided with an inlet-pipe 3,communicating with a horizontal passage 4, leading to near each end ofthe cylinder and provided with oppositely-working valves 5.Diametrically opposite the cylinders are provided with eductionvalves 6,passages 7, and discharge-pipes S, which communicate with theair-chambers 9. These cylinders are also provided with manholes 10 andcovers 12 for affording access to the valves.

The parts just referred to may be of any ordinary orsuitableconstruction as they form no part of my present invention.

The cylinders are provided with hollow or motor coils 13, (shunt orcompound winding) connected as if they were one coil, in order to makethe cylinders hollow electromagnets or solenoids. There should be two ofthese coils or bobbins for each cylinder electrically connected witheach other, so as to afford a space for the suction and discharge pipes.The coils of said cylinders are respectively connected with a dynamo orother electric generator, and a continuous current is always passingtherethrough when in use in one and the same direction, the poles neverbeing changed or shifted. The cylinder-heads 1 and 2 form thepole-pieces. The cylinders are connected by a yoke 14, of brass, bronze,or other non-magnetic metal. Located in said cylinders are pistons 15,of soft iron, connected by means of a piston-rod 16. I prefer to employtwo piston-rods, so as to prevent the pistons from turning, one or bothof which has a central longitudinal hole for the passage of the wires,hereinafter described. These pistons are provided with bobbins or coils17, connected together by wires 18 and 19, running through the hole inthe pistonrod, which coils are electrically connected with a dynamo, ashereinafter described, so as to form electromagnets independent of thecylinders. Each piston has two iron heads 20, provided withphosphor-bronze packingrings 21. These rings are necessary to keep thepiston-heads out of contact with the magnetized cylinders and also forpreventing water from passing.

For changing the current or shifting the poles of the pistons I providethe following means: The numeral 23 designates a horizon tal metal tubescrewed on the piston-head of cylinder 1. Located inside of this tube isanother tube 22, of hard rubber or other insulating material, to whichare fastened two copper c0mmutator-strips 2i and 25, approximatelysemicircular in cross-section with a space between the edges thereof.The tube passes through a stuffing-box 26 in the cylinder-head. Thecommutator strips or segments are electrically connected with thebobbins or coils of the pistons, being the two terminals thereof.

The numeral 27 designates an outwardlyprojecting horn consisting of ametal tube having its inner end enlarged, forming a cylindrical chamber28, which is screwed or otherwise secured to the cylinder-head The outerend of the horn is closed by a screwcap 29, formed with two holes 30,through which the positive and negative wires 31 and 32, electricallyconnected with a dynamo, pass. Secured to this cap is aninwardly-extending brass tube 34, which is about the same length as tube23 and which is located in the tube 22. The latter tube is slightlylonger than the stroke of the pistons, in order to allow for ascrew-head on the end for fastening it to the piston-head.

The feed-wires 3i and 32 pass through holes in tube 34: and run alongthe inside thereof to near the inner end, where they pass throughnipples 35, of insulating material, to bindingposts 36 on the outside ofthe tube 34. Connected with these binding-posts are brushes 37 and 38,which contact, respectively, with connecting-rings 39 and 40 on theouter face of a rotatable disk 41, loosely mounted or journaled on astud-shaft $2 in the inn er end of the tube 3% so as to freely turnthereon. Secured to this disk, diametrically opposite each other, aretwo cams if each consisting of a triangular metal plate, which is curvedlongitudinally so as to conform to the periphery of the disk and screwedor otherwise secured thereto. The frontand rear edges of these cams areadapted to be alternately struck by pins 4(5) and 46, secured to thetube 23, as the latter is reciprocated by the piston to which it isattached, thereby oscillating the disk. Pivoted to the inner side of thedisk are brushes 4-? and 4S, electrically connected with the rings 39and i0, which brushes c011- tact with the copper commutator strips orsegments 2i and 25. Secured to the end of the stud-shaft t2 is astationary cam-dog 4.9, with which engage curved springs 50, secured tothe disk 11, the tendency of which is to press toward the center of thedisk. The object of this construction is to th row the brushes 4? and 48across the spaces between the edges of the commutator strips or segmentsin shifting the poles of the pistons. The dog also acts as a washer tohold the disk in place.

For the purpose of diminishing the spark caused by the current beingbroken as the brushes cross the spaces between the commutator-strips Iprovide a governor (see Fig. 5) comprising a base 50, of insulatingmaterial, upon which is mounted a solenoid 5], one terminal of which isconnected with the negative wire of the dynamo, while the other isconnected with a rheostat 52, of any ordinary or suitable construction.The other terminal of the rheostat is connected with the positive wireof the dynamo. The upper end of the core 53 of the solenoid at itsupperend is pivoted to the lever 5-1, fulcrumed at 50 to a standard 57,secured to the base. The oppositc or free end of this lever is providedwith two brushes 58 and 59, which slide on the contacts of the rheostat.Between the end of the lever and its fulcrum is a coiled spring 60,secured to said base and lever, of sufficient power to counteract theweight of the core when the solenoid is slmrt-circuited and causethebrushes to slide down the coir taets of the rhcostat, therebyreducing the current fed to the cylinders and pistons.

In order to prevent water from accumulating in the horn 27 throughleakage from the stuffing-box, the enlarged inner end is provided at thelower side with a pipe 01, having a check-valve 62, and opposite theretowith a pipe 63, having oppositely-working check-valve 6t. \Vhen thepistontube is drawn into the cylinder, air will be sucked into the hornthrough pipe 63, and 011 the return stroke it will force the air andwater out through pipe 61 and thus keep the horn dry. The horn does notcont-act with the reciprocating piston-tube, but serves to protect thesame from injury and from water.

All the coils are intended to be provided with a brass easingsurrounding the same, with a filling of resin or other suitablematerial, so that the pump can be submerged without liability of theentrance of water.

The operation is as follows: An electric en 1:- rent being passedthrough the coils of the cylinders and pistons, the cylinders andpistons will be converted into electromagncts. The coils of thecylinders are so wound with respect to each other that their oppositepoles will be in reverse directions, and when the north pole of cylinder1 and the south pole of its piston are opposite to each other the northpole of the other cylinder will be opposite the north pole of itspiston. As the piston in cylinder 1 is drawn to the north end of thecylinder by the mutual attraction therebetween and reaches the end ofits stroke, the poles of the pistons will be reversed by the shiftingmechanism, when the north pole of cylinder 2 and the south pole of itspiston will be opposite each other, and the piston being attractedthereto will cause the return stroke. The operation will thus continue,the poles of the pistons being alternately shifted, so as to keep up aconstant reciprocation of the pistons.

The pole-shifting mechanism operates as follows: Supposing the piston tobe in the position shown in Fig. 1, with the north pole at the left ofcylinder 1, opposite the south pole of its piston, the latter will beattracted to said end, carrying with it the other piston with which itis connected, the circuit being as follows: from dynamo to thecylinder-coils and then back to dynamo, and from positive dynamo to thehorn, to the tube 34, to one of the binding-posts, near the inner endthereof, to the brushes and conducting-ring 37 and 39, to brush 47, tocommutator strip or segment 24, to the coils of the piston, thence bywire 18 to piston-coils in cylinder 2, to wire 19, commutator-segments25, brush 48, conducting-ring 37, to brush 38, to the other binding postor tube 34, to negative wire of dynamo. As the pistons reach the end oftheir stroke the pins 46 will strike the outer curved edges of the cams43, rotating the same and the disk 41, to which they are secured, andforcing the springs 50, secured to the disk, outward by means of thestationary dog 49. YVhen the brushes 47 and 48 pass off of thecommutator-segments, the resiliency of the springs will rotate the diskstill further, throwing the brush esacross the break or space intocontact with the other commutator-segments, reversing the current andshifting the poles of the pistons, so that the north poles of thecylinder 2 and its piston will be opposite to each other, and the pistonin the said cylinder 2 will be attracted to the right, causing thereturn stroke of the pistons. This operation will be alternatelyrepeated, causing a constant reciprocation of theepistons.

Having thus described my invention, what I claim is 1. In amagneto-electric pump, the combination with the pump cylinders providedwith induction and ed uction valves and pipes and wound with motor-coilsadapted to be connected with an electric generator, formingelectromagnets, the opposite poles of which are in reverse directions,of the connected pistons located in said cylinders wound withmotor-coils adapted to be electrically connected with an electricgenerator and forming electromagnets independent of the cylinders andmeans for shifting the poles of said pistons, substantially asdescribed.

2. In a magneto-electric pump, the combination with the pump-cylinders,provided with induction and eduction pipes and valves, wound withmotor-coils adapted to be connected with an electric generator to formelectromagnets the opposite poles of whichare in reverse directions, ofthe connected pistons located in said cylinders wound with motor-coilsadapted to be electrically connected with an electric generator to formelectromagnets independent of the cylinders, the piston-heads, thepacking-rings of nonmagnetic material and means for shifting the polesof the pistons, substantially as described.

3. In a magneto-electric pump, the combination with the pump -cylinders,provided with induction and eduction pipes and valves, and wound withmotor-coils adapted to be connected with an electric generator, toconvert the cylinders into electromagnets, the opposite poles of whichare in reverse directions, of thepistons wound with motor-coils adaptedto be electrically connected with an electric generator to formelectromagnets independent of the cylinders, the piston-rod having ahole extendin therethrough for the passage of wires electricallyconnecting the coils of the cylinders, substantially as described.

4. In a magneto-electric pump, the combination with the pump-cylinderprovided with induction and eduction valves and wound with motor-coilsadapted to be connected with an electric generator to convert thecylinders into electromagnets, the opposite poles of which are inreverse directions, of the connected pistons, wound with motor-coils toform electromagnets independent of the cylinders, the tube secured toone of said pistons and extending through the cylinder-head, theinsulating-tube, the semicylindrical commutator strips or segments, withspaces between the edges, to the inner ends of which segments thepiston-coils are electrically connected, and means for changing thecurrent to shift the poles of the pistons, substantially as described.

5. In a magneto-electric pump, the combination with the pump-cylinders,provided with induction-and eduction pipes and Valves and wound withmotor-coils adapted to be connected with an electric generator to formelectromagnets, the opposite poles of which are in reverse directions,of the connected pistons wound with motor-coils and adapted to beelectrically connected with an electric generator to form electromagnetsindependent of the cylinders, the tube secured to one of said pistonsprojecting through the cylinder-head, the insulating-tube securedthereto, the separating semicylindrical commutator strips or segmentssecured to said insulatingtube, to the inner ends of which thepistoncoils are electrically connected, the stationary tube projectinginto the said insulated tube, the oscillating disk mounted on saidstationary tube, the brushes carried by said disk and connecting withsaid segments, the wires electrically connected with said brushes andwith an electric generator, and means for oscillating said disk tochange the said brushes from one segment to the other and shift thepoles of the pistons, substantially as described.

6. In a magneto-electric pump, the combi nation with the pump-cylindersprovided with induction and ed uction pi pcs and valves, and wound withmotor-coils adapted to be connected with a dynamo to formelectro1nagnets, the opposite poles of which are in opposite directions,of the connected pistons wound with motor-coils adapted to beelectrically connected with an electric generator to form elcctromagnetsindependent of the cylinders, the tube secured to one of said cylindersand extending through the cylinderhead, the insulating-tube locatedtherein and secured thereto, the commutator strips or segments to theinner ends of which the pistoncoils are connected, the stationary tubeproject-ing into the insulating-tube, the oscillating disk on the innerend thereof, the con centric conductin grin gs secured to said disk, thebrushes carried by said disk, contacting with said segments andelectrically connected with said rings, the brushes contacting with saidrings and secured to said stationary tube, and the wires connected withsaid last-mentioned brushes and adapted to be connected with an electricgenerator and means for oscillating said disk to shift the poles of thepistons, substantially as described.

7. In a magneto-electric pump, the combination with the pump-cylindersprovided with induction and eduetion pipes and valves, and wound withmotor-coils adapted to be electrically connected with an electricgenerator to form eleetromagnets the opposite poles of which are inreverse directions, of the c011- nected pistons wound with motor-coilsto form independent electromagnets,the tube secured to one of saidpistons, and projecting through the piston-head, the pins secured tosaid tube at each end thereof, the insulating-tube located in andsecured to said tube, the separated commutator strips or segmentssecured to said insulating-tube, to the inner ends of which thepiston-coils are connected, the stationary tube projecting into saidinsulatingtube, the oscillating disk on the inn er end of saidstationary tube provided with concentric conducting-rings, the brushescarried by said disk electrically connected with said rings andcontacting with the commutator-segments, the brushes carried by saidstationary tube, contacting with said rings, the wires connected withsaid brushes and adapted to be connected with an electric generator, thecams secured to said disk adapted to be struck by the pins on the tubesecured to the piston to oscillate the disk and shift the poles of thepistons, substantially as described.

8. In a magneto-electric pump the combination with the puni ii-cylindersprovided with induction and eduction pipes and valves, and wound withmotor-coils adapted to be electrically connected with an electricgenerator to form clcctroinagnets the opposite poles of which are inreverse directions, of the connected pistons wound with motor-coils toform independent electromagnets, the tube secured to one of said pistonsprojecting through the piston-head, the insulating-tube located in andsecured to said tube, the separated commutator strips or segmentssecured to the said insulating-tube, to the inner ends of which thepiston-coils are connected, the stationary tube projecting into theinsulating-tube, the oscillating disk on the inner end of the stationarytube provided with concentric conducting-rings,the brushes carried bysaid disk electrically connected with said rings and contacting with thecomniutater-segments, the brushes carried by said stationary tube,contaciin g with said conducti ng-rings,and adapted to be connected withan electric generator, the springs secured to said disk, the stationarycam-dog on the end of said stationary tube with which the said springsengage and means for oscillating said disk to shift the pole of thepiston, substantially as described.

9. In a magneto-electric pump, the combination with the pump'cylindersprovided with induction and eduction pipes and valves and wound withmotor-coils adapted to be connected with an electric generator to formelectromagnets, the opposite poles of which are in diiicrent directions,of the connected pistons wound with motor-coils to form independentelectromagncts, the tube secured to one of said pistons projectingthrough the cylindcr-head, the pins secured thereto at each end, theinsulating-tube located in and secured to said tube, the separatedcommutator strips or segments secured to said insulatingtubes, to theinner end of which the piston coils are connected, the stationary tubeprojecting into said insulating-tube, the oscillating disk on the innerend of said stationary tube provided with concentric conductingrings,the brushes carried by said disk electrically connected with said ringsand contacting with the commutator-segments, the brushes carried by saidstationary tube eontacting with said rings and adapted to be connectedwith an electric generator, the springs secured to said disk, thecam-dog on the end of the stationary tube with which the said springsengage, and the cams secured to the disk with which the pins on the tubesecured to the piston engage to oscillate the disk and shift the polesof the pistons, substantially as described.

10. In a magneto-electric pump, the combination with the pump-cylindersprovided with induction and eduction pipes and valves, and wound withmotor-coils adapted to be connected with an electric generator to formelectromagnets, the opposite poles of which are in different directions,of the connected pistons wound with motor-coils to form independentelectromagnets, the tube secured to one of said pistons and projectingthrough the cylinder-head, the insulating-tube located in and securedthereto, the commutator-segments secured to said insulating-tube, thehorn having an enlarged'inner end secured to said cylinder-head providedwith opposite pipes and check-Valves, the screw-cap at the outer end ofthe horn, the stationary tube secured thereto, and projecting into theinsu- 1ating-tube, the wires adapted to be connected with an electricalgenerator and extending therethrough, the brushes connected therewith,the oscillating disk, the conductingrings, the brushes carried by saiddisk and means for oscillating the disk, substantially as described.

11. In a magneto-electric pump, the combination with the pump-cylindersprovided with induction and eduction pipes and valves, and wound withmotor-coils adapted to be connected with an electric generator, to formelectromagnets the opposite poles of which are in reverse directions,and the connected pistons wound with motor-coils adapted to beelectrically connected with an electric generator, to form independentelectromagnets and means for shifting the poles of the pis-

